U.S. patent number 3,697,082 [Application Number 04/854,137] was granted by the patent office on 1972-10-10 for golf tee.
This patent grant is currently assigned to SAID Di Laura, by said Pratt. Invention is credited to Arnold E. Di Laura, Donald P. Pratt.
United States Patent |
3,697,082 |
Di Laura , et al. |
October 10, 1972 |
GOLF TEE
Abstract
A golf tee comprising a generally conically shaped wall defining
a central opening therein and formed of a synthetic plastic foam
material. The upper edge of the wall is inclined radially inwardly
toward the opening, providing a seating surface for a golf ball.
The lower edge is provided with a plurality of downwardly
extending, ground engaging projections having recesses therebetween
for accommodating irregularities in the ground surface. The tee is
formed by stamping out an arcuately shaped section from a flat
strip of synthetic plastic foam material with the cut edges
extending normal to the plane of the section. The opposite ends of
the section are brought together and secured to form the generally
conically shaped tee.
Inventors: |
Di Laura; Arnold E. (Buffalo,
NY), Pratt; Donald P. (Eden, NY) |
Assignee: |
SAID Di Laura, by said Pratt
(N/A)
|
Family
ID: |
25317831 |
Appl.
No.: |
04/854,137 |
Filed: |
August 29, 1969 |
Current U.S.
Class: |
473/388;
473/387 |
Current CPC
Class: |
A63B
57/10 (20151001) |
Current International
Class: |
A63B
57/00 (20060101); A63b 057/00 () |
Field of
Search: |
;273/33,210,205,208,203,211 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Pinkham; Richard C.
Assistant Examiner: Brown; Theatrice
Claims
We claim:
1. A golf tee adapted to rest on the surface of the ground
comprising a body having a wall defining a central opening therein,
said wall having an upper edge inclined downwardly and inwardly
toward said central opening forming an inwardly dished golf ball
supporting seat, said body being of a wall thickness such that the
seating surface formed by said upper edge provides a relatively
large ball contact area, said wall having a lower portion including
a plurality of downwardly extending ground engaging projections
defining a plurality of recesses therebetween for accommodating
upwardly extending ground surface irregularities, said body being
formed of a resiliently yieldable synthetic foam material, and said
wall being of a generally conical shape tapering upwardly toward
said upper edge, wherein said projections are generally V-shaped
fingers terminating in generally radially extending knife edges
inclined upwardly and outwardly and of a length substantially equal
to the thickness of said wall, wherein said inner ends engage said
ground surface and said lower edges are adapted to be pressed
against said ground surface progressively from said inner ends
toward said outer ends upon axial compression of said body, wherein
said upper and lower edges extend in a direction normal to the
outer surface of said wall, and wherein said wall is of circular
horizontal section and said projections are generally radially
arranged thereabout.
Description
BACKGROUND OF THE INVENTION
This invention relates to a golf ball support and, more
particularly, to an improved golf tee construction and method of
making the same.
Conventional wooden golf tees having stems adapted to be pressed
into a ground surface leaving the heads thereof exposed to provide
golf ball supporting surfaces are not completely satisfactory
because of their lack of durability and their tendency to travel in
the direction of the ball after being struck by a clubhead. The
ball supporting heads are easily broken or chipped under clubhead
impact thereby necessitating discard of the tees. Such tees are
often propelled a distance in front of the golfer when struck by a
clubhead and are easily lost. Furthermore, they are often impacted
in the ground, either deliberately or accidentally, thereby
cluttering the fairway and increasing the difficulty of properly
maintaining the golf course. In tees of this type, the height of
the ball supporting surface above the ground is a variable for each
tee set-up, and the stems thereof have sharp points providing
safety hazards when handling the same. Also, positioning the tee in
the ground can be particularly difficult where only hard, dry
ground is available.
A tee construction which successfully obviates the above noted
disadvantages is disclosed in pending application Ser. No. 586,114,
filed Oct. 12, 1966, in the form of an extremely lightweight,
virtually indestructible golf tee adapted to lie in an upright
position on the surface of the ground without need for pressing
into the ground. The present invention provides an alternative
construction offering the advantages of the construction disclosed
in copending application Ser. No. 586,114 and also having
additional desirable features.
SUMMARY OF THE INVENTION
It is an object of the present invention to provide an improved
golf tee, which is simple and extremely lightweight in
construction, rugged and durable in use, low in cost, easily placed
in teeing position on the surface of the ground, and which can be
inexpensively and expeditiously formed of a synthetic plastic foam
material.
Generally speaking, the golf tee of the present invention comprises
a conically shaped body formed of a synthetic plastic foam material
having an upper edge or rim inclined radially inwardly for
providing a seating surface for a golf ball. The lower edge is
provided with a plurality of downwardly extending, ground engaging
projections or fingers having recesses therebetween for
accommodating irregularities in the ground surface. The fingers
terminate in edges inclined relative to a horizontal plane so that
initially only the inner ends of the edges engage the ground
surface with a point contact.
The tee is formed by stamping an arcuately shaped blank or section
out of a strip of plastic synthetic foam material with the cut
edges extending perpendicularly to the plane of the section. The
opposite ends of the section are adhesively bonded together to form
the finished product.
The foregoing and other objects, advantages and characterizing
features of the present invention will become clearly apparent from
the ensuing detailed description of an illustrative embodiment
thereof, taken together with the accompanying drawing wherein like
reference numerals denote like parts throughout the various
views.
BRIEF DESCRIPTION OF THE DRAWING FIGURES
FIG. 1 is an elevational view of a golf tee constructed in
accordance with the present invention;
FIG. 2 is a top plan view of the golf tee illustrated in FIG.
1;
FIG. 3 is a vertical sectional view taken about on line 3--3 of
FIG. 2;
FIG. 4 is a bottom plan view of the golf tee illustrated in FIG. 1;
and
FIG. 5 is an arcuate blank or section stamped out of a strip of
plastic synthetic foam material shown prior to connecting the ends
together to form the golf tee of FIG. 1.
DETAILED DESCRIPTION OF AN ILLUSTRATIVE EMBODIMENT
Referring now in detail to the drawing, there is shown in FIG. 1
one form of a golf tee constructed in accordance with the present
invention comprising a generally conically shaped pad or body,
generally designated 10, having a central opening 12 defined by an
inclined wall 14 tapering upwardly and terminating in an upper edge
or rim 16 inclined downwardly radially from the outer surface of
wall 14 toward opening 12. Rim 16 is disposed at substantially a
right angle relative to wall 14 and forms a golf ball supporting or
seating surface which is dished inwardly for providing a relatively
large contact area conforming to the engaging surface of the
ball.
Body 10 preferably is formed of a synthetic plastic foam material,
such as polyurethane, polyethylene, polyvinyl or polypropylene for
example, although it may be formed of any suitable, lightweight
spongy material. By forming the golf tee of a synthetic foam or
spongy material, which is lightweight, inexpensive and resiliently
yieldable, the tee of this invention can flex under the impact of a
clubhead to provide a virtually indestructible tee. It also
provides a cushioned impact which avoids damage to the face of a
wood clubhead. Moreover, the material returns to its original shape
after being temporarily deformed by a clubhead blow and maintains
its integrity so as not to chip or crumble.
The present tee is adapted to lie directly on a ground surface with
no anchorage thereto when in teeing position. To compensate for the
tendency of such a lightweight tee to tilt upon engaging ground
surface irregularities such as grass, small stones or the like, the
underside of body 10 is formed to provide a plurality of downwardly
extending, ground engaging projections or fingers 18 defining
recesses 20 therebetween. In the illustrated form, fingers 18 are
V-shaped and have a thickness generally equal to wall 14. Fingers
18 terminate in knife edges 22 having a length equal to the
thickness of wall 14.
When body 10 is placed in teeing position, the inner portions only
of edges 22 engage the ground surface, indicated at 24 in FIG. 1,
thereby effecting a point contact rather than a line contact of
edges 18. Ground surface irregularities, including grass, will
project upwardly into recesses 20 between fingers 18 and are
accommodated in a manner substantially obviating the tendency of
such irregularities to tilt body 10.
When the golf ball is placed on supporting edge or rim 16, body 10
tends to compress somewhat causing edges 22 to be pressed against
ground surface 24 progressively from the inner ends of edges 22
radially outwardly toward the outer ends thereof to provide
additional support under the weight of the ball. The dished contour
of rim 16 provides an adequate seating surface for the golf ball,
preventing the ball from being displaced from the tee by a strong
breeze or wind.
While the tee of this invention can be molded, preferably it is
formed as follows. In forming the golf tee of the present
invention, a strip of flat synthetic plastic foam material of the
desired thickness is placed on a workbench or table and one or more
arcuately shaped sections 30 (FIG. 3) having a curved edge 32 and a
corrugated or toothed edge 34 are stamped out from the strip of
material. The corrugated edge 34 provides a series of V-shaped
projections 36 which constitute the V-shaped fingers 18 of the
finished product. The cutting or stamping operation is simplified
by merely directing the work tool in a path of movement at right
angles to the plane of the strip of material. Thus, all edges are
oriented normal to the plane of the material strip.
Each strip 30 is bent through 360.degree. to bring end portions 38
together, which end portions are then bonded together as by a
suitable rubber cement or other adhesive to form a seam 40 in the
finished product shown in FIGS. 1-4. Although wall 14 is originally
flat, the stresses resulting in bringing end portions 38 together
causes wall 14 to be slightly bowed as shown in FIGS. 1 and 3. It
should be appreciated that the right angularly related edges 32 and
34 form edges 16 and 22 which are inclined relative to a horizontal
plane cut transversely through body 10. Thus, the complex,
generally frusto-conical finished shape of the tee of this
invention with its inclined edges 16 and 22 is easily produced by
originally forming such edges perpendicular to the plane of wall
section 30.
From the foregoing, it is apparent that the objects of the present
invention have been fully accomplished. As a result of this
invention, an improved golf tee is provided which is easily
manufactured, inexpensive, durable, and of lightweight
construction. The present tee rests on a ground surface and
provides a dished seating surface for a golf ball. By the provision
of ground engaging projections having recesses therebetween, ground
surface irregularities are accommodated. Also, the relatively large
area of the tee body which may be easily colored by making it of a
colored plastic material renders it easily observable to facilitate
retrieval. The generally frusto-conical shape of body 10, the
radially oriented ground engaging projections and the basically
point contact thereof with the ground provides a very stable
construction in a tee which is easily positioned for play.
One form of this invention having been described and illustrated,
it is to be understood that this has been done by way of
illustration only.
* * * * *